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  1. Audio Supply Texas Instruments LM5155 LM8261 TPA3221
    Audio amplifiers for high-power portable speakers such as trolley speakers usually operate with lithium-ion batteries, and these batteries can vary from a single cell to a few cells in series. Designers generally use boost converters to produce the ...
    23-05-2022
  2. Since its invention over a half-century ago by Hanz Camenzind at Signetics, the familiar 555 analog timer (in league with its updated pin-compatible CMOS descendants) has become an iconic design element incorporated into useful standardized ...
    19-05-2022
  1. A power supply that I was examining used an opto-coupler in its feedback path for control of its output voltage. This is a commonplace and well established design approach, but the feedback loop’s unconditional loop stability was not ...
    12-05-2022
  2. A switched-mode power supply (SMPS) employing peak current-mode control (PCMC) requires a ramp signal to slope-compensate the inner (current) control loop. Slope compensation stabilizes the current loop, which would otherwise exhibit subharmonic ...
    03-05-2022
  3. Using two unipolar dc supplies in an anti-series configuration is another approach for generating positive and negative voltage and one that doesn't suffer from power interruption. In 2012, I wrote two articles in Electronic Design that ...
    28-04-2022
  4. Ask a power converter designer what they want from a semiconductor switch and the answer might be something like: “Low on-resistance, high off-resistance, and the fastest possible transition between the two states”. The idea of course, ...
    22-04-2022
  5. Introduction Every electronic device you can consider containing a PCB is still the best and most reliable way of connecting electronics components. The PCB stands for Printed Circuit Board , on which electronic components are soldered on pads ...
    19-04-2022
  6. Developed as a three-terminal shunt regulator, the popular and multiple-sourced TL431 IC offers designers many intriguing possibilities beyond its intended application. Internally, the TL431 comprises a precision voltage reference, an operational ...
    03-04-2022
  7. ADCs with differential inputs are becoming increasingly popular. This popularity isn't surprising, because differential inputs in the ADC offer several advantages: good common-mode noise rejection, a doubling of the available dynamic range ...
    28-03-2022
  8. More than a half-century old, the ubiquitous and mind-bogglingly useful 555 analog timer has become a perennial object for both kudus and criticism. Most of the former and some of the latter is justified, but sometimes a supposed shortcoming will ...
    25-03-2022
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